How to create system restore points on Linux with Timeshift - and why you should
Briefly

"Timeshift is not a backup tool. Rather, it's an application to help you recover from self-inflicted situations where you need to get your system back up and running."
"When that happens, you might not even remember what you did to cause the problem. Maybe it was a config file in /etc, which is often the case."
Read at ZDNET
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